CN205010893U - Door shape tie -beam and half gate -type scraper blade reclaimer thereof - Google Patents

Abstract

The utility model provides a door-shaped connecting beam, which comprises a multi-section connecting beam. Alignment and pre-fixation of two adjacent connecting beams before welding. The utility model also provides a half-door type scraper reclaimer, which includes a scraper chain reclaimer arm body, a connecting seat and a fixed side end beam for supporting the scraper chain reclaimer arm body and the connection seat, and a scraper chain reclaimer. The tail end of the material arm body is hinged with the connection seat, and the connection seat is installed on the fixed side end beam through the height adjustment mechanism. The utility model has a simple structure, and connecting pieces are arranged between the sections, and the sections are connected and fastened before welding, so as to eliminate the influence of deformation and manufacturing deviation. It is convenient and quick to adjust the elevation of the scraper chain fetching arm device, eliminating the adverse effects of civil foundation settlement on the scraping operation; greatly reducing the work intensity of maintenance, reducing overhaul time, and improving labor productivity.

Description

A gate-shaped connecting beam and its half-gate scraper reclaimer

technical field

The utility model belongs to the technical field of conveying machinery for bulk materials, in particular to a gate-shaped connecting beam and a half-gate scraper reclaimer thereof.

Background technique

Bulk materials generally refer to a large number of unpackaged materials that are piled up together, and the monomers are in the form of blocks, granules, spheres, powders, etc., such as ore, coke, limestone, coal powder, etc. For large iron and steel plants and thermal power plants, a large amount of bulk materials need to be stacked, stored, and reclaimed every day. There are usually several ways to store and withdraw bulk materials: open-air stockyards, strip-shaped closed stockyards, and ring-shaped closed stockyards. In these methods, the open-air stockyard occupies a large area, the materials are directly affected by weather factors, and the environmental pollution is large, which has been gradually replaced by the closed stockyard; the ring-shaped closed stockyard can only be used to store and withdraw a single material, so It is widely used in thermal power plants to store and withdraw fuel coal; the strip-shaped closed stockyard can be used to store and withdraw diversified bulk materials by adding partition walls, which caters to the characteristics of diversified raw materials in steel plants, so the strip-shaped closed stockyard In recent years, the application in steel plants has gradually increased.

The semi-portal scraper reclaimer is used in the closed strip raw material field of bulk material engineering, and is a reclaiming device for limestone, ore, coal powder, coke and other raw materials. The semi-portal scraper reclaimer is mainly composed of lower side traveling wheels and guides, fixed side end beams, door-shaped connecting beams, wire rope hoisting mechanism; scraper chain reclaiming arm, floating side end beams, upper side traveling wheels and guides, etc. . The whole semi-portal scraper reclaimer runs on two rails, one upper and one lower, and the rails are installed on the civil foundation.

After the half-portal scraper reclaimer receives the instruction of material dispatching from the raw material dispatching center, it will carry out the reclaiming operation. The main process is as follows: driven by the wheels, the whole half-portal scraper reclaimer can move longitudinally along the material strip to scrape the material position, the scraper chain starts to cycle, and then the hoisting and lifting mechanism drives the pick-up arm down to a certain depth on the material surface and keeps it constant, and the ore and other raw materials are scraped to the belt conveyor through the scraper on the chain ;At the same time, the whole semi-portal scraper reclaimer moves along the longitudinal direction of the material strip at a certain speed to complete the scraping of a material layer on the material surface; The chain stops functioning.

At present, the existing semi-gantry type scraper reclaimer, the door-shaped connecting beam adopts a closed box-shaped beam structure, which is divided into several sections with a length of less than 10 meters and processed in the factory, and then directly connected to the several sections after being transported to the use site. Weld it up to form an integral door-shaped connecting beam; then set up stairs on the outside of the box girder or on the side to be used as a pedestrian passage for maintenance. For a large semi-gantry type scraper reclaimer, the total length of the door-shaped connecting beam reaches 30-50 meters, the section height of the box girder is 2-3 meters, the section width is 1.5-2 meters, and the weight reaches about 40-70 tons. The difficulties brought about include: due to the deviation and deformation of the equipment manufacturing, it is difficult to connect the segments when the welding is assembled on site, the welds are not neat, the quality of the welds is not guaranteed, and the strength and stiffness of the gate-shaped connecting beam are affected. The weight of the portal-shaped connecting beam is too heavy, and subsequent installation and adjustment are difficult; the pedestrian walkway is erected on the top and side of the portal-shaped connecting beam, which is in a suspended state and is difficult to erect. At the same time, it is dangerous and prone to high-altitude falling accidents.

For a closed raw material yard, the height of the stockpile can reach 20 meters, and the foundation bears a large load. Moreover, due to different production needs, some compartments may be full of materials, and some compartments may be empty, and the load is not large. Uniformity, such working conditions lead to foundation settlement often occurs, usually the settlement of the civil foundation on the lower side of the rail and the civil foundation on the lower side of the stockpile are inconsistent, resulting in scraping the material when the scraper chain reclaiming arm device is lowered to the lowest position; or Scratching the concrete foundation close to the side of the discharge belt will cause the foundation to be broken or the equipment to be damaged. When the latter situation occurs, because the half-portal scraper reclaimer itself does not have a height adjustment link, the production plants often have to adjust it. The elevation of the track should be raised, so that the horizontal elevation of the entire semi-portal scraper reclaimer can be raised to avoid damage to civil works and equipment; since the longitudinal length of the track is generally 200-1000 meters, this method has a huge workload. It is understood that due to the poor geological conditions of the location, some manufacturers have to do it every year.

Utility model content

In view of the above-mentioned deficiencies in the prior art, the purpose of this utility model is to provide a door-shaped connecting beam, which ensures the dimensional accuracy and quality of the butt weld.

In order to achieve the above purpose and other related purposes, the technical solution of the utility model is as follows:

A door-shaped connecting beam, which is applied to a half-door type scraper reclaimer, includes a multi-section connecting beam, and two adjacent connecting beams are fixed by welding, and also includes a plurality of connecting pieces, which are connected between two adjacent Between the connecting beams, it is used for the alignment and pre-fixation of two adjacent connecting beams before welding.

With the above-mentioned structure, connecting pieces are arranged between the segments, and the connections between the segments are fastened before welding, so as to eliminate the influence of deformation and manufacturing deviation.

Preferably, the connecting piece includes a connecting plate and a bolt assembly, and a plurality of connecting holes are correspondingly opened on the connecting plate and its corresponding two-section connecting beams, and the bolt assembly fixes the two-section connecting beams through the connecting plate and the connecting holes.

As a preference: the connecting beam is a box-type beam, and a connecting piece is provided on each of the four outer surfaces of two adjacent sections of the connecting beam.

As a preference: a walkway is arranged inside the connecting beam, and the walkway runs through the entire gate-shaped connecting beam.

As a preference: the webs on both sides of the connecting beam are provided with a plurality of lighting and ventilation holes along the length direction of the connecting beam.

As a preference: the lighting and ventilation holes are located at the height centerline of the connecting beam.

The utility model also provides a half-door type scraper reclaimer, which includes the above-mentioned door-shaped connecting beam, and also includes a scraper chain reclaimer arm body, a connecting seat and a body for supporting the scraper chain reclaimer arm and The fixed side end beam of the connection seat, the tail end of the scraper chain picking arm body is hinged with the connection seat, and the connection seat is installed on the fixed side end beam through a height adjustment mechanism. Of course it also includes structures such as a wire rope hoisting mechanism, a floating side end beam, an upper side traveling wheel and a guide, these structures are all prior art, and will not be repeated here.

In this structure, a height adjustment mechanism is set at the tail end of the scraper chain retrieving arm body. Through the adjustment of this link, the elevation of the rotation hinge point at the tail end of the scraper chain retrieving arm device can be changed, and the entire scraper chain reclaiming arm can be realized. Elevation adjustment of the device.

As a preference: the end beam on the fixed side is provided with an end beam support arm, and a plurality of positioning holes are vertically distributed on the end beam support arm, and adjustment holes corresponding to the positioning holes are provided on the connection seat, and the connection The seat is installed on the end beam support arm and fixed by bolts.

As a preference: the first end of the end beam support arm is connected to the fixed side end beam, the second end has a vertical end surface and a horizontal upper surface, and the connecting seat has a horizontal mating surface and a vertical mating surface, so The vertical fitting surface is fitted to the vertical end surface and fixed by bolts, the horizontal fitting surface is pressed against the upper surface of the second end of the end beam support arm and fixed by locking bolts, and the horizontal fitting surface is pressed against the second end of the end beam support arm. A backing plate is arranged between the upper surfaces of the end beams, and a gasket assembly is arranged between the backing plate and the upper surface of the second end of the end beam support arm.

As a preference: the scraper chain retrieving arm body includes a retrieving arm and multiple sets of scrapers, the retrieving arm is provided with a walking track, and the scraper is installed on the walking track through a chain plate assembly and a roller mechanism, The scraper has a bottom plate, and a top plate is installed on each group of the chain plate assemblies, and the top plate and its corresponding chain plate assembly are welded into an integral frame structure, and the top plate and the bottom plate are tightly connected.

As mentioned above, the beneficial effects of the utility model are: 1. The portal-shaped connecting beam of the utility model adopts a hollow beam structure, which reduces the weight of the equipment and facilitates subsequent hoisting and adjustment without affecting the strength and stiffness; Bolted connecting plates are arranged between the sections, and the sections are fastened before welding to eliminate the influence of deformation and manufacturing deviation, and ensure the dimensional accuracy and quality of the butt welds; The construction is convenient, the traffic is safer, and there is no risk of falling from a height. 3. Simple structure, convenient and quick adjustment of the elevation of the scraper chain picking arm device, eliminating the adverse effects of civil foundation settlement on the scraping operation; greatly reducing the work intensity of maintenance, reducing overhaul time, and improving labor productivity. 4. The frame-type inner chain plate can provide strong support for the scraper, greatly improve the overall strength, reduce the frequency of failure, and increase the service life.

Description of drawings

Fig. 1 is the structural representation of the utility model portal-shaped connecting beam;

Fig. 2 is the enlarged view of I place in Fig. 1;

Fig. 3 is a partial view of the interior of the utility model door-shaped connecting beam;

Fig. 4 is a schematic diagram of the overall structure of the half-door type scraper reclaimer of the utility model;

Fig. 5 is a side view of Fig. 4;

FIG. 6 is a top view of FIG. 4 .

Fig. 7 is a schematic plan view of the tail structure of the scraper chain fetching arm device of the present invention;

Fig. 8 is a schematic cross-sectional view of the tail structure of the scraper chain fetching arm device of the present invention;

Fig. 9 is a schematic diagram of the end face structure of the utility model scraper chain;

Fig. 10 is a schematic diagram of the connection relationship between the utility model chain plate assembly and the scraper;

Fig. 11 is a side view of the chain plate assembly and the scraper of the utility model.

Part number description

1-Traveling wheels and guiding structure on the lower side; 2-Fixed side end beam; 3-Gate-shaped connecting beam; 4-Winch wire rope hoisting mechanism; 5-Scraper chain reclaiming arm body; 6-Floating side end beam; 7-Up Side travel wheel and guide structure; 8-scraper chain; 9-cantilever beam; 10-bearing seat; 11-driving device; 12-connecting seat; 13-end beam support arm; 14-adjustment hole; 16-lock bolt; 17-gasket; 18-positioning hole;

31-one section of connecting beam; 32-two sections of connecting beam; 33-three sections of connecting beam; 34-four sections of connecting beam; 35-fifth section of connecting beam; 36-connecting plate; 37-bolt assembly; 39 - pedestrian passage;

500-oil injection lubrication system; 501-guiding device; 502-upper rail; 503-lower rail; 504-scraper; 505-roller; 506-outer chain plate; 507-pin shaft; 508-sleeve; Plate; 510-top plate; 511-guide roller; 512-wear-resistant lining plate; 513-bolt; 514-scraping tooth; 515-bottom plate;

A-rotary hinge point; B-scraper lower track; C-concrete foundation edge of stockpile; D-stockpile cushion foundation; E-stockpile; F-scraper upper track; G-horizontal mating surface; H- Vertical mating faces.

detailed description

The implementation of the present utility model is illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification.

As shown in Figures 1 to 3, a door-shaped connecting beam includes a multi-section connecting beam. It is used for the alignment and pre-fixation of two adjacent connecting beams before welding. Connectors are set between segments, and the connections between segments are fastened before welding to eliminate the influence of deformation and manufacturing deviation. The connecting beam is a box-type beam, and a connecting piece is arranged on the four outer surfaces of two adjacent sections of the connecting beam.

In this example, the door-shaped connecting beam is composed of one section 31 of the connecting beam, two sections 32 of the connecting beam, three sections 33 of the connecting beam, four sections 34 of the connecting beam, and five sections 35 of the connecting beam. Correspondingly, a plurality of connecting holes are opened on the adjacent two sections of connecting beams, and the connecting holes on the two sections of connecting beams are facing each other, and the connecting plate 36 is also provided with connecting holes corresponding to the two sections of connecting beams, and the bolt assembly 37 passes through the connecting plate 36 and the The holes fix the two connecting beams.

A walkway 38 is arranged inside the connecting beam, and the walkway 38 runs through the entire gate-shaped connecting beam. The web plates on both sides of the connecting beam are provided with a plurality of lighting and ventilation holes 39 along the length direction of the connecting beam. The lighting and ventilation holes 39 are located at the centerline of the height of the connecting beam. reduce the weight of the vehicle.

The portal-shaped connecting beam of the utility model adopts an open-web beam structure, which reduces the weight of the equipment and facilitates subsequent hoisting and adjustment without affecting the strength and stiffness; bolt assemblies 37 and connecting plates 36 are arranged between connecting beam sections and connected before welding. The connection between sections is fastened to eliminate the influence of deformation and manufacturing deviation, and ensure the dimensional accuracy and quality of the butt weld. After the connection is completed, it can be welded from the inside of the connecting beam; It is convenient and safer to pass without the risk of falling from a height.

As shown in Figures 4 to 6, the utility model also provides a half-door type scraper reclaimer, including the above-mentioned door-shaped connecting beam 3, and also includes a reclaiming arm device, a wire rope hoisting mechanism 4, and a floating side end beam 6 , the upper side traveling wheel and guide structure 7, the lower side traveling wheel and guide structure 1, etc., wherein B is the lower track of the scraper, C is the concrete foundation edge of the stockpile, D is the cushion foundation of the stockpile, and E is the stockpile; F is the upper track of the scraper; these structures are all prior art, and will not be repeated here.

The reclaiming arm device includes the scraper chain reclaiming arm body 5, the connection seat 12 and the fixed side end beam 2 for supporting the scraper chain reclaiming arm body 5 and the connection seat 12, and the scraper chain reclaiming arm body 5 The tail end is hinged with the connecting seat 12, and the connecting seat 12 is installed on the fixed side end beam 2 through a height adjustment mechanism. In this example, the scraper chain retrieving arm body 5 includes a cantilever beam 9 and a scraper chain 8 and a driving device 11 installed on the cantilever beam 9. Bearing blocks 10 are fixed on both sides of the tail of the cantilever beam 9. The bearing blocks 10 and The connecting seat 12 rotates through the shaft and the bearing seat 10 in cooperation.

As shown in Figures 7 and 8, a further solution is that an end beam support arm 13 is provided on the fixed side end beam 2, and a plurality of positioning holes 18 are vertically distributed on the end beam support arm 13, and a connecting seat 12 is provided with There is an adjustment hole 14 corresponding to the positioning hole 18. The connecting seat 12 is installed on the end beam support arm 13, and the bolt passes through the positioning hole 18 and the adjustment hole 14 to fix the two. Here, the positioning holes 18 are evenly spaced. Therefore can adjust its elevation by moving connecting seat 12 up and down, and then get final product with bolt.

In order to increase the stability between the connecting seat 12 and the end beam support arm 13, the first end of the end beam support arm 13 is connected to the fixed side end beam 2, and the second end is arranged to have a vertical end surface and a horizontal upper surface structure , the corresponding connecting seat 12 has two processing mating surfaces, a horizontal mating surface G and a vertical mating surface H, the vertical mating surface H fits with the vertical end surface of the fixed side end beam 2 and passes through the horizontal bolts Fixed, the horizontal mating surface G is pressed against the upper surface of the second end of the end beam support arm 13 and fixed by the locking bolt 16, so that the stability of the connecting seat 12 is enhanced through the mating connection of the two surfaces.

In order to facilitate the height adjustment, between the connecting seat 12 and the end beam support arm 13, a backing plate 15 is provided between the horizontal fitting surface G and the upper surface of the second end of the end beam support arm 13, and at the same time, the backing plate 15 A gasket assembly 17 is also arranged between the upper surface of the second end of the end beam support arm 13, and the gasket assembly 17 can be composed of a plurality of gaskets with different thicknesses, and its thickness can be adjusted to increase or decrease as required. In application, by adjusting the thickness of the gasket assembly 17, the installation reference height of the connection seat 12 can be adjusted, the absolute elevation of the rotation hinge point A can be changed, and the elevation adjustment of the entire scraper chain reclaiming arm device can be realized. In this example, the height adjustment mechanism is formed by the positioning hole 18, the adjustment hole 14, the bolt, the backing plate 15 and the gasket assembly 17, which is convenient for adjustment and has a stable structure.

As further shown in Figures 9 to 11, the scraper chain retrieving arm body 5 includes a cantilever beam 9 with a square main support structure and multiple sets of scrapers 504 for scraping materials, and walking tracks are provided on both sides of the cantilever beam 9 , the scraper 504 is installed on the walking track through a chain plate assembly and a roller mechanism. The scraper 504 has a bottom plate 515 and side plates. Fasten the connection.

A further technical solution is that the walking track includes a left track and a right track, the left track and the right track have an upper track 502 and a lower track 503 respectively, and the cantilever beam 9 between the left track and the right track Guide device 501 and guide roller 511 are arranged along walking direction, and guide device 501 is installed in the cantilever beam 9 middle part, and described guide roller 511 is installed on the base plate 515 by fastener, and the multiple groups on the left side track (right side track) The chain plate components are connected to form a scraper chain. A top plate 510 is installed on the top of each set of chain plate components. The top plate 510 is welded together with its corresponding chain plate component, forming a frame structure. The bottom plate 515 of the scraper 504 and its corresponding top plate 510 and The chain plate components are connected and fixed by bolts 513. Since the chain plate components have been welded together with the top plate 510, and the top plate 510 and the bottom plate 515 are closely attached, they are locked by bolts 513, which greatly improves the force strength of the scraper 504. Overall strength and stability are improved.

The guide shaft passes through the base plate 515 and is fixed by a bolt seat and a nut assembly. The nut assembly and the bolt seat fix the base plate 515 in the middle and support the guide shaft at the same time. The guide roller 511 is installed on the guide shaft and cooperates with the guide device 501 .

Wherein the chain plate assembly includes an inner chain plate 509, an outer chain plate 506 and a sleeve 508, the sleeve 508 passes through the outer chain plate 506 and the inner chain plate 509 and is equipped with a pin 507, and the end of the pin 507 is equipped with a roller 505, The roller 505 is supported on the running track; the top of the inner chain plate 509 is fixed to the top plate 510 , and the scraper 504 includes a bottom plate 515 , side plates, wear-resistant lining plates 512 and scraping teeth 514 .

In order to solve the problem of inconvenient lubrication and large workload, an oil injection lubrication system 500 is installed on the cantilever beam 9. The oil injection lubrication system 500 includes a main oil pipe and a plurality of nozzles connected to the main oil pipe. Each group of chain plate assemblies Two gaps are formed between the inner chain plate 509 and the outer chain plate 506, through which lubricating oil can be injected to lubricate the pin shaft 507 of the roller mechanism. place.

In this example, in order to facilitate the injection of lubricating oil, the oil injection lubrication system 500 is installed on the lower part of the cantilever beam 9, and the nozzle is set downward. When the chain plate assembly moves to the lower part of the cantilever beam 9, it can be lubricated by the control system. Save labor costs.

In this example, there is one set of oil injection lubrication system 500, and each set of oil injection lubrication system 500 includes four nozzles, and the subsections correspond to the four gaps of two groups of chain plate assemblies. In other embodiments, multiple sets can be provided. In this example, the guide roller 511 and the roller 505 of the roller mechanism are all fully sealed structures with self-contained lubricating grease, and there is no need to add lubricating grease.

Anyone familiar with this technology can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed in the utility model should still be covered by the claims of the utility model.

Claims (10)

1. a door shape tie-beam, be applied to semi-door type scratch board reclaimer, comprise multistage tie-beam, by being welded and fixed between adjacent two sections of tie-beams, it is characterized in that: also comprise multiple attaching parts, described attaching parts is connected between adjacent two sections of tie-beams, for welding the aligning of front adjacent two sections of tie-beams and pre-fixing.

2. a kind of door shape tie-beam according to claim 1, it is characterized in that: described attaching parts comprises connecting panel and bolt assembly, on two sections of tie-beams of connecting panel and correspondence thereof, correspondence offers multiple connecting bore, and two sections of tie-beams are fixed by connecting panel and connecting bore by described bolt assembly.

3. a kind of door shape tie-beam according to claim 1, is characterized in that: described tie-beam is box beam, is provided with an attaching parts at four lateral surfaces of adjacent two sections of tie-beams.

4. a kind of door shape tie-beam according to claim 1, is characterized in that: described tie-beam inside is provided with walkway, the through whole door shape tie-beam in this walkway.

5. a kind of door shape tie-beam according to claim 1, is characterized in that: the former of described tie-beam both sides offers multiple daylighting breather hole along tie-beam length direction.

6. a kind of door shape tie-beam according to claim 5, is characterized in that: described daylighting breather hole is positioned at tie-beam height center line position place.

7. a semi-door type scratch board reclaimer, it is characterized in that: comprise a kind of door shape tie-beam described in claim 1-6 any one, also comprise scraper chain arm for taking material body, Connection Block and the fixation side end carriage for support scratch board chain arm for taking material body and Connection Block, described scraper chain arm for taking material body tail end and Connection Block hinged, Connection Block is arranged on fixation side end carriage by height adjustment mechanism.

8. a kind of semi-door type scratch board reclaimer according to claim 7, it is characterized in that: described fixation side end carriage is provided with end carriage support arm, end carriage support arm is vertically distributed with multiple knock hole, described Connection Block offers the adjustment hole corresponding with knock hole, and described Connection Block is arranged on end carriage support arm and is bolted.

9. a kind of semi-door type scratch board reclaimer according to claim 8, it is characterized in that: described end carriage support arm first end is connected with fixation side end carriage, second end has the upper surface of a vertical end face and level, described Connection Block has a horizontal fitting surface and a vertical fitting surface, described vertical fitting surface and vertical end face are fitted and are bolted, described horizontal fitting surface is pressed in end carriage support arm second end upper surface and is fixed by lock(ing) bolt, backing plate is provided with between described horizontal fitting surface pressure and end carriage support arm second end upper surface, gasket assembly is provided with between described backing plate and end carriage support arm second end upper surface.

10. a kind of semi-door type scratch board reclaimer according to claim 7, it is characterized in that: described scraper chain arm for taking material body comprises arm for taking material and organizes scraper plate more, described arm for taking material is provided with walking track, described scraper plate is arranged on walking track by chain board component and idler wheel mechanism, described scraper plate has base plate, often organize on described chain board component and be provided with a top board, the carrier bar components welding that described top board is corresponding with it is integrated tower structure, is fastenedly connected between described top board and base plate.